Pump for vacuum cleaning systems.



G. B. BARTLEY.

PUMP FOR VACUUM CLEANING SYSTEMS. APPLICATION FILED AUG.24. 1914.

1,138,617. Patented May11,1915.

2 SHEETS-SHEET l- Fig.1

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Gem ge BBartlgl G. B. BARTLEY.

PUMP FOR VACUUM CLEANING SYSTEMS.

APPLICATION FILED AUG.24. 1914.

1, 1 38,6 1 7. v Patent-ed May 11, 1915.

2 SHEETSSHEET 2- UNITED STATES PATENT OFFICE.

GEORGE B. BARTLEY, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-THIRD T0 OSCAR G.

TWEDDELL AND ONE-THIRD TO RICHARD SPOELSTRA, BOTH OI DETROIT, MICHIGAN a Specification of Letterslatent.

Patented May 11, 1915 Application filed August 24, 1914. Serial No. 858,863.

T 0 all whom it, may concern:

Be it known that I, Gronon B. BARTLEY, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvementsin Pumps for Vacuum Gleanin Systems, of which the following is a speci cation, reference being had therein to the accompanying drawin This invention relates to a hydrau ic vacuum pump, and the objects of my invention are to provide a pump that can be advantageously used in connection with pneumatic cleaning systems for removing dust or dirt from various kinds of surfaces, and to provide a pump of the above type wherein provision is made for collecting and discharging foreign matters into a sewer or similar conduit, without danger of the pump becoming clogged or otherwise impaired by the foreign matter drawn or sucked into the pump.

'Further objects of my invention are to provide a hydraulic vacuum pump wherein a float controlled air valve regulates the operation of the vacuum producing means, and to furnish a pump of the above type with positive and reliable means, in the manner hereinafter set forth, whereby a forcible vacuum can be produced through the medium of diaphragms actuated by a water motor. I A still further object of my invention is to accomplish the above results by a simple, durable and inexpensive machine consisting of comparatively few parts that are easy to assemble and highly efficient for thepurposes for which they are intended. I

With the above, and other objects in view my invention resides in the novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein- Figure 1 is a vertical cross-sectional view of the pump; Fig.2 is a vertical transverse sectional view of a portion of the same, and Fig. 3 is a plan of a portion of the pump,

A pump in accordance with my lnvention comprises a dished or concave-convex circular base 1 provided with a plurality of legs 2 adapted to support the base in an elevated position relatively to a floor or surend of a vertically disposed tank or reser-- voir 8 seated upon the base 1, said tank or reservoir having both ends thereof open.

Upon the upper end of the tank or reservoir 8 is mounted a crown plate 9, which is hollow and has the top and bottom walls 10 and 11 thereof connected with a ported web 12 establishing communication between the interior of the tank or reservoir and the atmosphere. This ported web is in proximity" to an edge of the crown plate and the bottom wall 11 of said crown plate, at a point diametrically opposed to the ported web 12, is provided with an air exhaust port 13. This port is intended to have the inner or lower end thereof closed by a fioat controlled va'lve 1a carried by the short arm of a lever 15 pivotally mounted or 'fulcrumed between hangers 16, carried by the bottom wall 11'of the crown plate 9. The long arm of the lever l5has a valve 17 adapted to close the lower or inner end of the ported web 12. The valves 14 and 17 are preferably in the form of resilient gaskets or washers carried by enlarged 'ends of the fulcrum lever 15 and it is through the medium of this lever -that the valves are ultimately closed. The short arm of the lever 15 is pivotally connected to a float rod 18 having a spherical hollow Boat 19 that is buoyantly supported by the contents of the tank or reservoir Above the crown plate and preferably formed integral therewith are twopump cylinders 20 and 21 that are identical in construction. These pump cylinders are vertically disposed and overhang the edges of the crown-plate 9, said pump cylinders having the lower ends thereof closed by the top wall 10 of the crown-plate 9. Thetop plate 10 of the crown plate is therefore extended, as best shown in Fig. 3, in order to form the lower ends of the pump cylinders, and it is these extended portions of the top plate that are provided with exhaust ports 22 and check valves 23. The check valves 23 are of the ordinary and well known type commonly styled flap valves and are arranged in the lower or outer ends of the exhaust ports 22.

- The top wall 10 of the crown plate 9 has exhaust ports 24 and check valves 25 for said ports. In this instance, the check valves are located within the cylinders 20 and 21.

j The pump cylinders'20 and 21 are connected byan intermediate ported member 26 in the vertical axis of the tank or reservoir 8. The member 26! is preferably inte al with the confronting sides of the cylinders 20 and 21 and the top wall 10 of the crown plate 9, said member having an oblong tapering port 27 formed therein communicating with the tank or reservoir 8. The port 27 has parallel side walls and the end walls converge from the top of the member 26v to the top wall 10 of the crown plate, where said port communicates with a ported oblong web 28 connecting the-walls 10 and 11 of the crown plate 9, between the exhaust ports 24 thereof.

Mounted upon the pump cylinders 20, 21 and the member 26 is a head plate, comprising two caps 29 connected by a ported web 30, which communicates with the port 27 of the connecting member 26 and thence b the orted web 28 with the tank or reservoir 8. he caps 29 provide circular dome-shaped diaphragm chambers. 30 and clamped between said caps and the upper ends of the pump cylinders 20 and 21 are diaphragms 31 and 32. These diaphragms can be made of flexible metal, leather, or other suitable material and as shown are in a continuous strip or single piece which also serves as a gasket between the pump cylinders, the caps, fitted web 30 and member 26. The diaphragms 31 and 32 are reinforced by metallic strips and plates 33 and concentric with each diaphragm is a connectin rod 34. The connecting rods 34 and the iaphragms 31 and 32 thereof are actuated by eccentrics 35 and a motor driven shaft 36, ournaled in bearings 37, carried by the ported web 30 connecting the caps 29 of the head plate.

Mounted upon the caps 29 of the head plate is a motor housing 38 having a central compartment 39 for a turbine or water wheel 40 mounted upon the shaft 36. The turbine or water wheel constitutes a motor that is operated by a jet of water or motive fluid injected into the compartment 39 of the housing 38 by a tangentially disposed nozzle or injector 41, carried by a wall of the housing 38 and in communication with a supply of water under pressure or other motive fluid.

Mounted in the wall of the tank or reservoir 8, contiguous to the upper end thereof, is an inlet connection in the form of an elbow 42, the inner end of the elbow being directed toward the bottom of the tank or reservoir.

Suitably secured in the upper end of the tank or reservoir is a ring 43 supporting a horizontal screen 44, which has an opening 45 providing clearance for the float rod 18.

In operation, the jet of water or motive fluid impinging the turbine or water wheel 40 causes said turbine or water wheel to revolve the shaft 36 and impart a vertical reciprocatory movement to the diaphragms 31 and 32 through the medium of the eccentric 35 and the connecting rod 34 thereof. By virtue of the check valves 25 and 23 air is continuously exhausted from the tank or reservoir 8, consequently there is a suction through the connection 42 and when the pump is used in connection with a vacuum cleaning system dirt and dust is sucked or drawn into the tank or reservoir. The matter drawn into the tank or reservoir commingles with the water or motive fluid discharged into the tank or reservoir through the ported web 30, the ported member 26 and the ported web 28.

In order that the contents of the tank or reservoir can be automatically and intermittently discharged therefrom, we have utilized the float-controlled air valve for closing the communication between the pump cy inders '20 and 21 and the tank or reservoir. As the level of water or motive fluid .rises in the tank or reservoir, the hollow float 19 is raised and eventually the valve 14 closes theport 13 and the valve 17 is opened to admit air to the tank or reservoir. The contents of the tank or reservoir are immediately discharged from the bottom thereof and when a certain quantity has been disposed of the float 19 allows the valve 14 to open, closing the ported web 12 and again allowing an to be exhausted from the tank or reservoir whereby matter Will be drawn therein by the vacuum or suction produced by the pump.

The screen 44 prevents dust, dirt and foreign matter from entering the hollow crown plate 9, besides serving as a baflle for the motive fluid and causing said fluid to wash the screen of foreign matter adhering thereto.

From the foregoing it will beobserved that the diaphragms are alternately actuated for-exhausting air from the tank or reservoir; that; the sets of check valves are actuated and that the float controlled air valve is intermittently actuated to cause a cessation in the pumping operation, as far as the tank or reservoir is concerned, in order that the contents thereof can be automatically discharged.

I attach considerable importance to the compact and novel arrangement of the pump cylinders and the water motor, the operation of which is conti olled by simply glurnling on or 011' the water supply or motive While in the drawings there is illustrated a preferred embodiment of the invention, it is to be understood that the structural elements are susceptible to such changes, as in the size, shape and manner of assemblage, as fall within the scope of the appended claims.

What I claim is 1. In a vacuum cleaning device, the combination with a pump and a hydraulic motor for operating said pump, of a tank to receive the discharge of said motor and having an outlet for the discharge and an inlet for dust-laden air, a hollow crown plate on said tank supportin said pump and motor and having a porte web establishing communication between said tank and said motor, a ported web in said crown plate adapted to establish communication between said tank and the atmosphere, said crown plate having a port through which said pum produces a vacuum in said tank retainm the discharge of said motor in said tank, an means adapted to control the communication between the atmosphere and said tank whereby the vacuum in said tank can be broken to allow the contents thereof to exhaust.

2. In a vacuum cleaning device, the combination with a pump and a hydraulic motor for operating said pump, of a tank to receive the discharge of said motor, said tank having an outlet for the discharge of said motor and an inlet for dust-laden air above the point of discharge from said tank, a hollow crown plate on said tank supporting said pump and said motor and establishin communication between said pump and said tank whereby a vacuum can be produced in said tank retaining the discharge of said motor therein, and means adapted to break the vacuum in said tank whereby the contents thereof can be discharged.

3. In a vacuum cleaning device, the combination with a pump and a hydraulic motor for operating said pump, of a tank to receive the discharge of said motor, said tank having an outlet for the discharge of said motor and an inlet for dust-laden air above the outlet of said tank, and means on said tank alternately establishing communication between said pump and said tank and the atmosphere and said tank whereby said pump can intermittently produce a vacuum in said tank maintaining the discharge of said motor therein until said tank is placed in communication with the atmosphere.

4. In a vacuum cleaning device, the combination with a pump and a hydraulic motor for operating said pump, of a tank to receive the discharge of said motor, said tank having an outlet for the discharge of said motor and an inlet for dust-laden air above the outlet of said tank, a crown plate on said tank ported to establish communication between said pump and said tank and the atmosphere and said tank, and float actuated means in said tank controlling the ports of said crown plate whereby a vacuum can be intermittently produced in said tank.

5. In a. vacuum cleaning device, the combination with a pump and a hydraulic motor for operating said pump, of a tank adapted to receive discharges from said motor and temporarily hold the same, said tank having an inlet for dust-laden air, means carried by said tank alternately establishing communication between said ump and sa1d tank and the atmosphere and said tank whereby a vacuum can be intermittently produced in said tank to draw dust-laden air into the discharge of said motor.

In testimon whereof I aflix my signature in presence 0 two witnesses.

GEORGE B. HARTLEY.

Witnesses Lnwrs E. FLANDERS, KARL H. BUTLER. 

